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Related Experiment Video

Updated: Jul 10, 2025

Assessment of Gut Barrier Integrity in Mice Using Fluorescein-Isothiocyanate-Labeled Dextran
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Intestinal Barrier Function and Neurodegenerative Disease.

Shijing Wu1, Liangfang Yang2, Yiwei Fu1

  • 1Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Institute of Neurology, Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, China.

CNS & Neurological Disorders Drug Targets
|November 27, 2023
PubMed
Summary

Impaired intestinal barrier function is linked to neurodegenerative diseases like Alzheimer's and Parkinson's. Repairing this barrier offers new therapeutic strategies for these conditions.

Keywords:
Alzheimer’s diseaseNeurodegenerative diseaseParkinson's diseasegut microbiota.gutbrain axisintestinal barriermultiple sclerosis

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Area of Science:

  • Neuroscience
  • Gastroenterology
  • Immunology

Background:

  • Neurodegenerative diseases, including Alzheimer's and Parkinson's, are characterized by neuron loss and remain largely incurable.
  • The microbiota-gut-brain axis is increasingly implicated in neurodegenerative pathologies.
  • Intestinal barrier dysfunction is a critical factor in the development of neurodegenerative diseases.

Purpose of the Study:

  • To review the structure and molecular mechanisms of the intestinal barrier.
  • To explore the relationship between intestinal barrier integrity and neurodegenerative diseases.
  • To highlight the potential of intestinal barrier repair as a therapeutic strategy.

Main Methods:

  • Literature review focusing on mechanistic studies of the microbiota-gut-brain axis.
  • Analysis of the components of the intestinal barrier: microbial, chemical, mechanical, and immune.
  • Synthesis of current research on the link between intestinal barrier disruption and neurodegeneration.

Main Results:

  • Intestinal barrier disruption, affecting its multiple layers, is closely associated with neurodegenerative pathologies.
  • Impaired intestinal barrier function contributes to the development and progression of diseases like Alzheimer's and Parkinson's.
  • Intestinal barrier repair therapies show promise for novel treatment approaches.

Conclusions:

  • Understanding the intestinal barrier's role is crucial for neurodegenerative disease research.
  • Targeting the intestinal barrier offers a promising avenue for developing effective treatments.
  • Further research into intestinal barrier repair could lead to viable therapeutic strategies for patients.